Steep and brushy from the whiskey creek crossing down to the north fork, 400'+ vertical maybe, and a mile hike on an abandoned road? I've considered hiking up from the lake, taking a kayak over to where it dumps in. but i never do, considering there's a half dozen more accessible tributaries less than 30 minutes up the road that the catch and keep crowd avoid.
Honestly, from newberg, i'd rather be heading west. so much good cutthroat water out there, why mess with the clack smolt? seems like all thats left out there these days, unless you want to nymph for whitefish, which are great smokers and a fun fight in that heavy water they occupy.